Difference between PRO-111FD and KRP500?

What are the differences between these 2 models? I have seen a lot of good reviews about the PRO-111FD but this particular model is not available here ( New Zealand). We only have the KRP500P Kuro plasmas and the older model PDPLX508G. Are any of these similar to the PRO-111FD? Which one should i choose out of the two available options i have and what is the difference between the PRO-111FD and the KRP500?

thanks in advance